Refrigeration cycle apparatus
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Solution Overview
Problem
Current refrigeration cycle apparatuses face inefficiencies due to the inability to effectively remove the degree of superheat during the compression process, leading to increased enthalpy and power consumption in compressors.
Innovation Solution
Incorporating a first atomization mechanism, such as a spray nozzle, in the evaporator or condenser to generate mist-like liquid phase refrigerant, which is then sucked into the compressor, facilitating continuous cooling and reducing enthalpy increase, thereby reducing compression power and enhancing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If liquid refrigerant is sprayed into the compressor inlet to cool the refrigerant vapor, then the compression power is reduced, but the compressor performance may deteriorate due to liquid refrigerant interference
Solution Approach 1:
The atomization mechanism sprays liquid refrigerant into the refrigerant vapor stream before it enters the compressor inlet, performing the cooling action in advance. This preliminary cooling reduces the temperature and enthalpy of the refrigerant vapor, thereby reducing the compression power required while preventing liquid refrigerant from directly interfering with the compressor's mechanical operation
Solution Approach 2:
The atomization mechanism acts as an intermediary device that facilitates heat exchange between liquid refrigerant and refrigerant vapor. By atomizing the liquid refrigerant into fine droplets, it creates a large surface area for efficient evaporative cooling, allowing the liquid refrigerant to cool the vapor without directly entering the compressor compression chamber in liquid form
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution significantly reduces the compression power needed, leading to increased efficiency and lower power consumption in refrigeration cycle apparatuses by inhibiting the increase in enthalpy caused by superheat, thus improving overall performance.
Implementation Method 1
a first atomization mechanism that is arranged in the evaporator and sprays the liquid phase refrigerant to an inlet of the first compressor
Implementation Method 2
the first atomization mechanism is a spray nozzle, such as a single-fluid atomization nozzle, a swirl nozzle, a two-fluid nozzle, or an ultrasonic nozzle
Data Source
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AI summary
A refrigeration cycle apparatus (100) includes an evaporator (2) that evaporates a liquid phase refrigerant to generate a gas phase refrigerant, a first compressor (3) that sucks and compresses the gas phase refrigerant generated in the evaporator (2), a condenser (4) that condenses the gas phase refrigerant compressed in the first compressor (3) to generate the liquid phase refrigerant, a first atomization mechanism (5) that sprays the liquid phase refrigerant into a first vapor passage extending from an inlet of a suction pipe (6) to an outlet of the first compressor (3) or sprays the liquid phase refrigerant to an inlet of the first compressor (3), and a first refrigerant supply passage (11) that connects the evaporator (2) or the condenser (4) with the first atomization mechanism (5).